Barracuda Real-Time Protection provides industry-leading response times to email-borne threats. It adds a third layer of antivirus protection to the Barracudan Spam Firewall. The technology is based on data collected from thousands of global honeypots. When unknown fingerprints are detected, it submits these fingerprints in real-time to a central center where engineers monitor the Internet for the latest threats. Unlike traditional antivirus solutions, it performs analysis against data stored on a single system.”]
Source: https://www.darkreading.com/attacks-breaches/barracuda-intros-real-time-protection